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Urban roads in the city, has a pivotal role. Green space in the social, economic, and landscape benefits, especially to improve the benefits of the ecological environment is also gradually being recognized. With the development of the city, the road green huge space for development, but due to various reasons such as history and reality, China's road greening level is still unsatisfactory, and can not give full play to its functions. Taking all factors in this context, the establishment of scientific, reasonable and comprehensive road greening project evaluation system to guide the future course of the design and construction of green, and to enhance the the road greening comprehensive level is imminent. Paper system introduces the concept of post-project evaluation and analysis of the differences and relations of the post-project evaluation and project evaluation, project assessment classification, content classification and common project assessment methods briefly at home and abroad development of the history and current situation, and their role and significance in the road greening. The proposed the road greening project after the assessment of the evaluation criteria, including ecological, social and economic benefits and Landscape effective four; proposed the road greening project assessment evaluation levels, including very good, good, average, poor, poor 5 level. The road greening project assessment index system, including the target layer, criteria layer and index layer. Guidelines layer including ecological, social and economic benefits, and landscape benefit. Evaluation of ecological benefits, including temperature, humidity, carbon dioxide concentration, the concentration of nitrogen oxides, dust concentration, the concentration of negative ions, radioactive pollutant concentrations; evaluation of social benefits including education function, the number of visitors per unit time, cultural characteristics reflected reduced accident rates and ease the employment pressure; evaluation of the economic benefits of land value-added benefits, the output value of forest products, seedling cultivation; landscape effective indicators with the proportion of the number of plant species, bushes and trees grass, ornamental landscape, seasonal changes, effect of the intervening space, coordination and hard landscape, suitable tree, the feelings of the pedestrian and green space coverage. Using analytical hierarchy process and fuzzy comprehensive evaluation method based on the survey of Changsha the Shaoshan Road and camphor Road, two roads greening situation assessment, green road better come to Shaoshan, camphor-way road greening poor conclusion, in line with the survey done. Analysis of the results of the assessment, combined with the knowledge of the relevant disciplines, to raise the level of the road greening project principles, including ecological principles, the principle of territorial and cultural integrity of the principle, the principle of individualization, people-oriented principle of aesthetic principles and the principle of the conservation of biological diversity. Put forward some suggestions and countermeasures to improve road greening project level.
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